Mitech MDW-ZJ Electrical Webster

Mitech MDW-ZJ Electrical Webster Hardness Tester

Product Description

The Mitech MDW-ZJ Electrical Webster Hardness Tester is a digitally controlled portable instrument designed for fast, accurate, and non-destructive hardness testing of aluminum and aluminum alloys. Available in various models—MDW-ZJ6x, MDW-ZJ10x, MDW-ZJ15x, and MDW-ZJ20x—this device combines an electric micro-motor system with digital display technology to provide precise readings at the push of a button.

With its advanced automation, ergonomic design, and high portability, the MDW-ZJ eliminates operator fatigue associated with manual indentation while ensuring consistent, repeatable results. It is a perfect solution for in-field inspections, production line testing, and quality assurance across industries where aluminum is widely used.

Key Features

• One-button automatic measurement eliminates manual operation

• High-contrast digital display for fast, easy reading of hardness values

• Internal micro-motor applies constant pressure for reliable results

• Built-in indenter protection mechanism reduces misoperations

• Tool-free calibration allows quick and easy accuracy adjustments

• Adjustable anvil spacing for compatibility with various workpiece thicknesses

• Pre-pressing system ensures proper contact for accurate indentation

• Lightweight and compact for easy transport and use in tight spaces

• Durable design suited for long-term industrial use

• Automatically powers off after 20 seconds of inactivity

Applications

• Hardness verification in aluminum alloy production

• Quality control in doors, windows, curtain walls, and construction profiles

• Rapid on-site inspection of large or heavy aluminum components

• Heat treatment process verification

• Material consistency detection in mechanical parts

• Government and third-party inspection and supervision

Working Principle

The MDW-ZJ performs hardness testing based on the indentation method. When the indenter contacts the surface of the material, it applies a standardized force to create a small indentation. The depth or resistance to indentation reflects the material’s hardness and is displayed in Webster Hardness (HW):

• 16 HW represents standard hardness

• 0 HW means the material is too soft

• 20 HW means the material exceeds the testing range

Readings can be converted to other hardness scales (HV, HR) using a conversion chart when necessary.

Operation Guidelines

• Press and hold the switch for 1 second to power on (red light appears)

• Insert the workpiece between the anvil and pre-pressing device

• The device beeps and displays the hardness value automatically

• Keep the unit stable during testing for best results

• Release the switch to reset the measurement position

• After 20 seconds of no use, the device shuts off automatically

Indicator Light Status:

• Red (left): Power on and indenter lowering

• Blue (right): Measurement in progress

• Red (right): Indenter returning to the initial position

Technical Specifications

• Measuring Range: 0 ~ 20 HW (Webster Hardness)

• Resolution Accuracy: 0.5 HW

• Operating Time: More than 48 hours of continuous use

• Main Unit Weight: 0.65 kg

• Package Dimensions: 31.5 × 21.5 × 8 cm

• Total Shipping Weight: 2.07 kg

The Mitech MDW-ZJ is an essential device for any organization requiring accurate and efficient hardness testing of aluminum components in both laboratory and field environments.